/Engine/Source/Runtime/Engine/Classes/Kismet/KismetTextLibrary.h
Check whether the given polyglot data is valid.
True if the polyglot data is valid, false otherwise. ErrorMessage will be filled in if the the data is invalid.
static void IsPolyglotDataValid ( const [FPolyglotTextData](API\Runtime\Core\Internationalization\FPolyglotTextData) & PolyglotData, bool & IsValid, [FText](API\Runtime\Core\Internationalization\FText) & ErrorMessage )